commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[François Valenduc]

Commit 15512021eb3975a8c2366e3883337e252bb0eee5 
(15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots 
to appears on the right upper corner of all console screens (see 
https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view). 
git-bisect shows that this is the offending commit and if I revert it, 
the problem goes away. The problem still occurs with kernel 5.18-rc2 and 
to all stable trees where it was applied.
Can somebody explains what happens ?

The video card is the following: VGA compatible controller: Intel 
Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00 
[VGA controller])

Please tell me if you need more info.

Thanks in advance,

François Valenduc

Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Jani Nikula]

On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> Commit 15512021eb3975a8c2366e3883337e252bb0eee5 
> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots 
> to appears on the right upper corner of all console screens (see 
> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view). 
> git-bisect shows that this is the offending commit and if I revert it, 
> the problem goes away. The problem still occurs with kernel 5.18-rc2 and 
> to all stable trees where it was applied.
> Can somebody explains what happens ?
>
> The video card is the following: VGA compatible controller: Intel 
> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00 
> [VGA controller])
>
> Please tell me if you need more info.

That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
configuration on TGL/RKL"), adding Cc's.

Please file a report at fdo gitlab [1] and attach dmesg etc. there.

Thanks,
Jani.


[1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs


-- 
Jani Nikula, Intel Open Source Graphics Center

Re: commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Jani Nikula]

On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> Commit 15512021eb3975a8c2366e3883337e252bb0eee5 
> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots 
> to appears on the right upper corner of all console screens (see 
> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view). 
> git-bisect shows that this is the offending commit and if I revert it, 
> the problem goes away. The problem still occurs with kernel 5.18-rc2 and 
> to all stable trees where it was applied.
> Can somebody explains what happens ?
>
> The video card is the following: VGA compatible controller: Intel 
> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00 
> [VGA controller])
>
> Please tell me if you need more info.

That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
configuration on TGL/RKL"), adding Cc's.

Please file a report at fdo gitlab [1] and attach dmesg etc. there.

Thanks,
Jani.


[1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs


-- 
Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Lisovskiy, Stanislav]

On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> > Commit 15512021eb3975a8c2366e3883337e252bb0eee5 
> > (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots 
> > to appears on the right upper corner of all console screens (see 
> > https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view). 
> > git-bisect shows that this is the offending commit and if I revert it, 
> > the problem goes away. The problem still occurs with kernel 5.18-rc2 and 
> > to all stable trees where it was applied.
> > Can somebody explains what happens ?
> >
> > The video card is the following: VGA compatible controller: Intel 
> > Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00 
> > [VGA controller])
> >
> > Please tell me if you need more info.
> 
> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
> configuration on TGL/RKL"), adding Cc's.
> 
> Please file a report at fdo gitlab [1] and attach dmesg etc. there.

That commit looks like it is just disabling all the planes, if wrong
dbuf/wm configuration is detected.
However it should do that only once during boot as I understand.

Are you sure that is exactly this commit which is causing this?
Does the issue appear always?

Ville Syrjälä, thoughts?

Stan

> 
> Thanks,
> Jani.
> 
> 
> [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
> 
> 
> -- 
> Jani Nikula, Intel Open Source Graphics Center

Re: commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Lisovskiy, Stanislav]

On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> > Commit 15512021eb3975a8c2366e3883337e252bb0eee5 
> > (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots 
> > to appears on the right upper corner of all console screens (see 
> > https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view). 
> > git-bisect shows that this is the offending commit and if I revert it, 
> > the problem goes away. The problem still occurs with kernel 5.18-rc2 and 
> > to all stable trees where it was applied.
> > Can somebody explains what happens ?
> >
> > The video card is the following: VGA compatible controller: Intel 
> > Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00 
> > [VGA controller])
> >
> > Please tell me if you need more info.
> 
> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
> configuration on TGL/RKL"), adding Cc's.
> 
> Please file a report at fdo gitlab [1] and attach dmesg etc. there.

That commit looks like it is just disabling all the planes, if wrong
dbuf/wm configuration is detected.
However it should do that only once during boot as I understand.

Are you sure that is exactly this commit which is causing this?
Does the issue appear always?

Ville Syrjälä, thoughts?

Stan

> 
> Thanks,
> Jani.
> 
> 
> [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
> 
> 
> -- 
> Jani Nikula, Intel Open Source Graphics Center

Re: commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[François Valenduc]

Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
> On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
>> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
>>> Commit 15512021eb3975a8c2366e3883337e252bb0eee5
>>> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots
>>> to appears on the right upper corner of all console screens (see
>>> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
>>> git-bisect shows that this is the offending commit and if I revert it,
>>> the problem goes away. The problem still occurs with kernel 5.18-rc2 and
>>> to all stable trees where it was applied.
>>> Can somebody explains what happens ?
>>>
>>> The video card is the following: VGA compatible controller: Intel
>>> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00
>>> [VGA controller])
>>>
>>> Please tell me if you need more info.
>> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
>> configuration on TGL/RKL"), adding Cc's.
>>
>> Please file a report at fdo gitlab [1] and attach dmesg etc. there.
> That commit looks like it is just disabling all the planes, if wrong
> dbuf/wm configuration is detected.
> However it should do that only once during boot as I understand.
>
> Are you sure that is exactly this commit which is causing this?
> Does the issue appear always?
>
> Ville Syrjälä, thoughts?
>
> Stan
>
>> Thanks,
>> Jani.
>>
>>
>> [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
>>
>>
>> -- 
>> Jani Nikula, Intel Open Source Graphics Center

As I said, git-bisect shows it's the offending commit and if I revert 
it, the problem doesn't happens. Otherwise, it always occurs.

François

Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Lisovskiy, Stanislav]

On Thu, Apr 14, 2022 at 08:33:35AM +0200, François Valenduc wrote:
> Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
> > On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
> > > On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> > > > Commit 15512021eb3975a8c2366e3883337e252bb0eee5
> > > > (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots
> > > > to appears on the right upper corner of all console screens (see
> > > > https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
> > > > git-bisect shows that this is the offending commit and if I revert it,
> > > > the problem goes away. The problem still occurs with kernel 5.18-rc2 and
> > > > to all stable trees where it was applied.
> > > > Can somebody explains what happens ?
> > > > 
> > > > The video card is the following: VGA compatible controller: Intel
> > > > Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00
> > > > [VGA controller])
> > > > 
> > > > Please tell me if you need more info.
> > > That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
> > > configuration on TGL/RKL"), adding Cc's.
> > > 
> > > Please file a report at fdo gitlab [1] and attach dmesg etc. there.
> > That commit looks like it is just disabling all the planes, if wrong
> > dbuf/wm configuration is detected.
> > However it should do that only once during boot as I understand.
> > 
> > Are you sure that is exactly this commit which is causing this?
> > Does the issue appear always?
> > 
> > Ville Syrjälä, thoughts?
> > 
> > Stan
> > 
> > > Thanks,
> > > Jani.
> > > 
> > > 
> > > [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
> > > 
> > > 
> > > -- 
> > > Jani Nikula, Intel Open Source Graphics Center
> 
> As I said, git-bisect shows it's the offending commit and if I revert it,
> the problem doesn't happens. Otherwise, it always occurs.
> 
> François
>

Does it just happen all the time or some steps/certain circumstances needed
for it to happen?

Only suspicion after looking briefly is that once suspend/resume is done
it might be messing something up. Just a quick guess..

Stan 

Re: commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Lisovskiy, Stanislav]

On Thu, Apr 14, 2022 at 08:33:35AM +0200, François Valenduc wrote:
> Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
> > On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
> > > On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> > > > Commit 15512021eb3975a8c2366e3883337e252bb0eee5
> > > > (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots
> > > > to appears on the right upper corner of all console screens (see
> > > > https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
> > > > git-bisect shows that this is the offending commit and if I revert it,
> > > > the problem goes away. The problem still occurs with kernel 5.18-rc2 and
> > > > to all stable trees where it was applied.
> > > > Can somebody explains what happens ?
> > > > 
> > > > The video card is the following: VGA compatible controller: Intel
> > > > Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00
> > > > [VGA controller])
> > > > 
> > > > Please tell me if you need more info.
> > > That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
> > > configuration on TGL/RKL"), adding Cc's.
> > > 
> > > Please file a report at fdo gitlab [1] and attach dmesg etc. there.
> > That commit looks like it is just disabling all the planes, if wrong
> > dbuf/wm configuration is detected.
> > However it should do that only once during boot as I understand.
> > 
> > Are you sure that is exactly this commit which is causing this?
> > Does the issue appear always?
> > 
> > Ville Syrjälä, thoughts?
> > 
> > Stan
> > 
> > > Thanks,
> > > Jani.
> > > 
> > > 
> > > [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
> > > 
> > > 
> > > -- 
> > > Jani Nikula, Intel Open Source Graphics Center
> 
> As I said, git-bisect shows it's the offending commit and if I revert it,
> the problem doesn't happens. Otherwise, it always occurs.
> 
> François
>

Does it just happen all the time or some steps/certain circumstances needed
for it to happen?

Only suspicion after looking briefly is that once suspend/resume is done
it might be messing something up. Just a quick guess..

Stan 

Re: commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[François Valenduc]

Le 14/04/22 à 10:03, Lisovskiy, Stanislav a écrit :
> On Thu, Apr 14, 2022 at 08:33:35AM +0200, François Valenduc wrote:
>> Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
>>> On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
>>>> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
>>>>> Commit 15512021eb3975a8c2366e3883337e252bb0eee5
>>>>> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots
>>>>> to appears on the right upper corner of all console screens (see
>>>>> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
>>>>> git-bisect shows that this is the offending commit and if I revert it,
>>>>> the problem goes away. The problem still occurs with kernel 5.18-rc2 and
>>>>> to all stable trees where it was applied.
>>>>> Can somebody explains what happens ?
>>>>>
>>>>> The video card is the following: VGA compatible controller: Intel
>>>>> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00
>>>>> [VGA controller])
>>>>>
>>>>> Please tell me if you need more info.
>>>> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
>>>> configuration on TGL/RKL"), adding Cc's.
>>>>
>>>> Please file a report at fdo gitlab [1] and attach dmesg etc. there.
>>> That commit looks like it is just disabling all the planes, if wrong
>>> dbuf/wm configuration is detected.
>>> However it should do that only once during boot as I understand.
>>>
>>> Are you sure that is exactly this commit which is causing this?
>>> Does the issue appear always?
>>>
>>> Ville Syrjälä, thoughts?
>>>
>>> Stan
>>>
>>>> Thanks,
>>>> Jani.
>>>>
>>>>
>>>> [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
>>>>
>>>>
>>>> -- 
>>>> Jani Nikula, Intel Open Source Graphics Center
>> As I said, git-bisect shows it's the offending commit and if I revert it,
>> the problem doesn't happens. Otherwise, it always occurs.
>>
>> François
>>
> Does it just happen all the time or some steps/certain circumstances needed
> for it to happen?
>
> Only suspicion after looking briefly is that once suspend/resume is done
> it might be messing something up. Just a quick guess..
>
> Stan

It occurs permantently as soon as I boot my computer.

Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Jani Nikula]

On Thu, 14 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> Le 14/04/22 à 10:03, Lisovskiy, Stanislav a écrit :
>> On Thu, Apr 14, 2022 at 08:33:35AM +0200, François Valenduc wrote:
>>> Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
>>>> On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
>>>>> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
>>>>>> Commit 15512021eb3975a8c2366e3883337e252bb0eee5
>>>>>> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots
>>>>>> to appears on the right upper corner of all console screens (see
>>>>>> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
>>>>>> git-bisect shows that this is the offending commit and if I revert it,
>>>>>> the problem goes away. The problem still occurs with kernel 5.18-rc2 and
>>>>>> to all stable trees where it was applied.
>>>>>> Can somebody explains what happens ?
>>>>>>
>>>>>> The video card is the following: VGA compatible controller: Intel
>>>>>> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00
>>>>>> [VGA controller])
>>>>>>
>>>>>> Please tell me if you need more info.
>>>>> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
>>>>> configuration on TGL/RKL"), adding Cc's.
>>>>>
>>>>> Please file a report at fdo gitlab [1] and attach dmesg etc. there.
>>>> That commit looks like it is just disabling all the planes, if wrong
>>>> dbuf/wm configuration is detected.
>>>> However it should do that only once during boot as I understand.
>>>>
>>>> Are you sure that is exactly this commit which is causing this?
>>>> Does the issue appear always?
>>>>
>>>> Ville Syrjälä, thoughts?
>>>>
>>>> Stan
>>>>
>>>>> Thanks,
>>>>> Jani.
>>>>>
>>>>>
>>>>> [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
>>>>>
>>>>>
>>>>> -- 
>>>>> Jani Nikula, Intel Open Source Graphics Center
>>> As I said, git-bisect shows it's the offending commit and if I revert it,
>>> the problem doesn't happens. Otherwise, it always occurs.
>>>
>>> François
>>>
>> Does it just happen all the time or some steps/certain circumstances needed
>> for it to happen?
>>
>> Only suspicion after looking briefly is that once suspend/resume is done
>> it might be messing something up. Just a quick guess..
>>
>> Stan
>
> It occurs permantently as soon as I boot my computer.

I'd appreciate that bug being filed, and the discussion moved there, so
all the details and history are in one place.

Thanks,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center

Re: commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Jani Nikula]

On Thu, 14 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> Le 14/04/22 à 10:03, Lisovskiy, Stanislav a écrit :
>> On Thu, Apr 14, 2022 at 08:33:35AM +0200, François Valenduc wrote:
>>> Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
>>>> On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
>>>>> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
>>>>>> Commit 15512021eb3975a8c2366e3883337e252bb0eee5
>>>>>> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots
>>>>>> to appears on the right upper corner of all console screens (see
>>>>>> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
>>>>>> git-bisect shows that this is the offending commit and if I revert it,
>>>>>> the problem goes away. The problem still occurs with kernel 5.18-rc2 and
>>>>>> to all stable trees where it was applied.
>>>>>> Can somebody explains what happens ?
>>>>>>
>>>>>> The video card is the following: VGA compatible controller: Intel
>>>>>> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00
>>>>>> [VGA controller])
>>>>>>
>>>>>> Please tell me if you need more info.
>>>>> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
>>>>> configuration on TGL/RKL"), adding Cc's.
>>>>>
>>>>> Please file a report at fdo gitlab [1] and attach dmesg etc. there.
>>>> That commit looks like it is just disabling all the planes, if wrong
>>>> dbuf/wm configuration is detected.
>>>> However it should do that only once during boot as I understand.
>>>>
>>>> Are you sure that is exactly this commit which is causing this?
>>>> Does the issue appear always?
>>>>
>>>> Ville Syrjälä, thoughts?
>>>>
>>>> Stan
>>>>
>>>>> Thanks,
>>>>> Jani.
>>>>>
>>>>>
>>>>> [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs
>>>>>
>>>>>
>>>>> -- 
>>>>> Jani Nikula, Intel Open Source Graphics Center
>>> As I said, git-bisect shows it's the offending commit and if I revert it,
>>> the problem doesn't happens. Otherwise, it always occurs.
>>>
>>> François
>>>
>> Does it just happen all the time or some steps/certain circumstances needed
>> for it to happen?
>>
>> Only suspicion after looking briefly is that once suspend/resume is done
>> it might be messing something up. Just a quick guess..
>>
>> Stan
>
> It occurs permantently as soon as I boot my computer.

I'd appreciate that bug being filed, and the discussion moved there, so
all the details and history are in one place.

Thanks,
Jani.


-- 
Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Saarinen, Jani]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> On Behalf Of Jani
> Nikula
> Sent: torstai 14. huhtikuuta 2022 11.32
> To: François Valenduc <francoisvalenduc@gmail.com>; Lisovskiy, Stanislav
> <stanislav.lisovskiy@intel.com>
> Cc: intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org
> Subject: Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5
> causes white spots in console screens
> 
> On Thu, 14 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> > Le 14/04/22 à 10:03, Lisovskiy, Stanislav a écrit :
> >> On Thu, Apr 14, 2022 at 08:33:35AM +0200, François Valenduc wrote:
> >>> Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
> >>>> On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
> >>>>> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com>
> wrote:
> >>>>>> Commit 15512021eb3975a8c2366e3883337e252bb0eee5
> >>>>>> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white
> >>>>>> spots to appears on the right upper corner of all console screens
> >>>>>> (see
> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
> >>>>>> git-bisect shows that this is the offending commit and if I
> >>>>>> revert it, the problem goes away. The problem still occurs with
> >>>>>> kernel 5.18-rc2 and to all stable trees where it was applied.
> >>>>>> Can somebody explains what happens ?
> >>>>>>
> >>>>>> The video card is the following: VGA compatible controller: Intel
> >>>>>> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02)
> >>>>>> (prog-if 00 [VGA controller])
> >>>>>>
> >>>>>> Please tell me if you need more info.
> >>>>> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
> >>>>> configuration on TGL/RKL"), adding Cc's.
> >>>>>
> >>>>> Please file a report at fdo gitlab [1] and attach dmesg etc. there.
> >>>> That commit looks like it is just disabling all the planes, if
> >>>> wrong dbuf/wm configuration is detected.
> >>>> However it should do that only once during boot as I understand.
> >>>>
> >>>> Are you sure that is exactly this commit which is causing this?
> >>>> Does the issue appear always?
> >>>>
> >>>> Ville Syrjälä, thoughts?
> >>>>
> >>>> Stan
> >>>>
> >>>>> Thanks,
> >>>>> Jani.
> >>>>>
> >>>>>
> >>>>> [1]
> >>>>> https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bu
> >>>>> gs
> >>>>>
> >>>>>
> >>>>> --
> >>>>> Jani Nikula, Intel Open Source Graphics Center
> >>> As I said, git-bisect shows it's the offending commit and if I
> >>> revert it, the problem doesn't happens. Otherwise, it always occurs.
> >>>
> >>> François
> >>>
> >> Does it just happen all the time or some steps/certain circumstances
> >> needed for it to happen?
> >>
> >> Only suspicion after looking briefly is that once suspend/resume is
> >> done it might be messing something up. Just a quick guess..
> >>
> >> Stan
> >
> > It occurs permantently as soon as I boot my computer.
> 
> I'd appreciate that bug being filed, and the discussion moved there, so all the
> details and history are in one place.
Agree. 

> 
> Thanks,
> Jani.
> 
> 
> --
> Jani Nikula, Intel Open Source Graphics Center

RE: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[Saarinen, Jani]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> On Behalf Of Jani
> Nikula
> Sent: torstai 14. huhtikuuta 2022 11.32
> To: François Valenduc <francoisvalenduc@gmail.com>; Lisovskiy, Stanislav
> <stanislav.lisovskiy@intel.com>
> Cc: intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org
> Subject: Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5
> causes white spots in console screens
> 
> On Thu, 14 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
> > Le 14/04/22 à 10:03, Lisovskiy, Stanislav a écrit :
> >> On Thu, Apr 14, 2022 at 08:33:35AM +0200, François Valenduc wrote:
> >>> Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
> >>>> On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
> >>>>> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com>
> wrote:
> >>>>>> Commit 15512021eb3975a8c2366e3883337e252bb0eee5
> >>>>>> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white
> >>>>>> spots to appears on the right upper corner of all console screens
> >>>>>> (see
> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
> >>>>>> git-bisect shows that this is the offending commit and if I
> >>>>>> revert it, the problem goes away. The problem still occurs with
> >>>>>> kernel 5.18-rc2 and to all stable trees where it was applied.
> >>>>>> Can somebody explains what happens ?
> >>>>>>
> >>>>>> The video card is the following: VGA compatible controller: Intel
> >>>>>> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02)
> >>>>>> (prog-if 00 [VGA controller])
> >>>>>>
> >>>>>> Please tell me if you need more info.
> >>>>> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
> >>>>> configuration on TGL/RKL"), adding Cc's.
> >>>>>
> >>>>> Please file a report at fdo gitlab [1] and attach dmesg etc. there.
> >>>> That commit looks like it is just disabling all the planes, if
> >>>> wrong dbuf/wm configuration is detected.
> >>>> However it should do that only once during boot as I understand.
> >>>>
> >>>> Are you sure that is exactly this commit which is causing this?
> >>>> Does the issue appear always?
> >>>>
> >>>> Ville Syrjälä, thoughts?
> >>>>
> >>>> Stan
> >>>>
> >>>>> Thanks,
> >>>>> Jani.
> >>>>>
> >>>>>
> >>>>> [1]
> >>>>> https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bu
> >>>>> gs
> >>>>>
> >>>>>
> >>>>> --
> >>>>> Jani Nikula, Intel Open Source Graphics Center
> >>> As I said, git-bisect shows it's the offending commit and if I
> >>> revert it, the problem doesn't happens. Otherwise, it always occurs.
> >>>
> >>> François
> >>>
> >> Does it just happen all the time or some steps/certain circumstances
> >> needed for it to happen?
> >>
> >> Only suspicion after looking briefly is that once suspend/resume is
> >> done it might be messing something up. Just a quick guess..
> >>
> >> Stan
> >
> > It occurs permantently as soon as I boot my computer.
> 
> I'd appreciate that bug being filed, and the discussion moved there, so all the
> details and history are in one place.
Agree. 

> 
> Thanks,
> Jani.
> 
> 
> --
> Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens

[François Valenduc]

Le 14/04/22 à 11:51, Saarinen, Jani a écrit :
>
>> -----Original Message-----
>> From: Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> On Behalf Of Jani
>> Nikula
>> Sent: torstai 14. huhtikuuta 2022 11.32
>> To: François Valenduc <francoisvalenduc@gmail.com>; Lisovskiy, Stanislav
>> <stanislav.lisovskiy@intel.com>
>> Cc: intel-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org
>> Subject: Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5
>> causes white spots in console screens
>>
>> On Thu, 14 Apr 2022, François Valenduc <francoisvalenduc@gmail.com> wrote:
>>> Le 14/04/22 à 10:03, Lisovskiy, Stanislav a écrit :
>>>> On Thu, Apr 14, 2022 at 08:33:35AM +0200, François Valenduc wrote:
>>>>> Le 14/04/22 à 08:31, Lisovskiy, Stanislav a écrit :
>>>>>> On Wed, Apr 13, 2022 at 08:12:20PM +0300, Jani Nikula wrote:
>>>>>>> On Wed, 13 Apr 2022, François Valenduc <francoisvalenduc@gmail.com>
>> wrote:
>>>>>>>> Commit 15512021eb3975a8c2366e3883337e252bb0eee5
>>>>>>>> (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white
>>>>>>>> spots to appears on the right upper corner of all console screens
>>>>>>>> (see
>> https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).
>>>>>>>> git-bisect shows that this is the offending commit and if I
>>>>>>>> revert it, the problem goes away. The problem still occurs with
>>>>>>>> kernel 5.18-rc2 and to all stable trees where it was applied.
>>>>>>>> Can somebody explains what happens ?
>>>>>>>>
>>>>>>>> The video card is the following: VGA compatible controller: Intel
>>>>>>>> Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02)
>>>>>>>> (prog-if 00 [VGA controller])
>>>>>>>>
>>>>>>>> Please tell me if you need more info.
>>>>>>> That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF
>>>>>>> configuration on TGL/RKL"), adding Cc's.
>>>>>>>
>>>>>>> Please file a report at fdo gitlab [1] and attach dmesg etc. there.
>>>>>> That commit looks like it is just disabling all the planes, if
>>>>>> wrong dbuf/wm configuration is detected.
>>>>>> However it should do that only once during boot as I understand.
>>>>>>
>>>>>> Are you sure that is exactly this commit which is causing this?
>>>>>> Does the issue appear always?
>>>>>>
>>>>>> Ville Syrjälä, thoughts?
>>>>>>
>>>>>> Stan
>>>>>>
>>>>>>> Thanks,
>>>>>>> Jani.
>>>>>>>
>>>>>>>
>>>>>>> [1]
>>>>>>> https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bu
>>>>>>> gs
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Jani Nikula, Intel Open Source Graphics Center
>>>>> As I said, git-bisect shows it's the offending commit and if I
>>>>> revert it, the problem doesn't happens. Otherwise, it always occurs.
>>>>>
>>>>> François
>>>>>
>>>> Does it just happen all the time or some steps/certain circumstances
>>>> needed for it to happen?
>>>>
>>>> Only suspicion after looking briefly is that once suspend/resume is
>>>> done it might be messing something up. Just a quick guess..
>>>>
>>>> Stan
>>> It occurs permantently as soon as I boot my computer.
>> I'd appreciate that bug being filed, and the discussion moved there, so all the
>> details and history are in one place.
> Agree.
>
>> Thanks,
>> Jani.
>>
>>
>> --
>> Jani Nikula, Intel Open Source Graphics Center
As requested, I filled a bug on freedesktop 
(https://gitlab.freedesktop.org/drm/intel/-/issues/5711)